During the Infiltration of the Ministry of Magic, Harry Potter overheard an employee of the Muggle-Born Registration Commission mention an episode involving a Poisonous duck apparently created by the Committee on Experimental Charms.
- Harry Potter and the Chamber of Secrets (film) (Mentioned as rubber duck)
- Harry Potter and the Chamber of Secrets (video game) (Rubber duck)
- Harry Potter and the Goblet of Fire (video game) (Effect from Ducklifors)
- Harry Potter and the Order of the Phoenix (Rubber duck)
- Harry Potter and the Deathly Hallows (Mentioned only)
- LEGO Harry Potter: Years 1-4 (Rubber duck)
- LEGO Harry Potter: Years 5-7 (Effect from Ducklifors)